中国电机工程学报2024，Vol.44Issue(5)：2058-2067,中插34,11.DOI:10.13334/j.0258-8013.pcsee.222782
导通时延抖动对无电抗器电容型脉冲电源的影响
Influences of Turn-on Delay Jitter on the Non-inductor Capacitive Pulsed Power Supply
摘要
Abstract
The Non-Inductor Capacitive Pulsed Power Supply(NICPPS)is one effective way to achieve the miniaturization and lightweight of the pulsed power supply,thus greatly facilitating the engineering progress of the electromagnetic launch technology.During the operation process of the NICPPS,the turn-on delay jitter of the thyristor is an important factor which can affect the reliability of the NICPPS,and its influences need to be taken into serious consideration.In this paper,based on the sub-circuit model of the high-power thyristor and the dynamic load,the performances of system outputs and semiconductor switches are both compared and analyzed,and the simulation is verified by the experiment.The jitter threshold of the first conducted module is discussed,which can be used as a frame of reference for the further development of the NICPPS.The result shows that the system's efficiency rises by 2.13%without pulse forming inductors,and the output performances are insignificantly affected by the turn-on delay jitter.The higher efficiency makes further improvements on the miniaturization and lightweight of the NICPPS on the condition of the equal muzzle velocity.The system's volume and weight decrease by 23.1%and 18.9%,respectively.However,the turn-on delay jitter has a negative impact on operation safety of the thyristor in the first conducted module.Attention must be paid to the high rate of current rise,which could cause the current spike.When the jitter threshold of the first conducted module is not greater than 0.1μs,the increase in the number of conducted modules can reduce the rate of current rise in the first conducted module effectively.Taking the limit value of the rate of current rise as boundary condition,the number of conducted modules rises in the form of power function with the linear increase of the turn-on delay.According to the analysis of the system performances,the NICPPS is feasible for the augmented railgun system in terms of engineering application.关键词
电磁发射/电容储能/脉冲功率电源/无电抗器/导通时延抖动Key words
electromagnetic launch/capacitive energy storage/pulsed power supply/non-inductor/turn-on delay jitter分类
信息技术与安全科学引用本文复制引用
叶文怡,王炅,付荣耀,徐旭哲,李兴,严萍,徐伟东..导通时延抖动对无电抗器电容型脉冲电源的影响[J].中国电机工程学报,2024,44(5):2058-2067,中插34,11.基金项目
国家自然科学基金(青年科学基金)项目(52207178). Project Supported by National Natural Science Foundation of China(Young Scientistic Program)(52207178). （青年科学基金）
